Acetone → methyl 2-formyl-3,4-dimethyl-5-(4-(1-methyl-1H-pyrazol-3-yl)benzyl)benzoate

Participants

Reaction Steps

To a solution of methyl 3,4-dimethyl-5-(4-(1-methyl-1H-pyrazol-3-yl)benzyl)-2-vinylbenzoate (0.96 g) in a mixed solvent of acetone (10.0 mL)-acetonitrile (10.0 mL)-water (10.0 mL) were added osmium oxide (fixed catalyst I) (0.34 g) and sodium periodate (2.86 g), and the mixture was stirred overnight at room temperature. The reaction mixture was concentrated under reduced pressure, and the residue was diluted with ethyl acetate and water. The insoluble substance was removed by filtration, and the filtrate was washed with saturated aqueous sodium bicarbonate solution, water and saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (0.17 g).

Provenance & Evidence